What is AVCHD ？

AVCHD (Advanced Video Coding High Definition) is a file-based format for the digital recording and playback of high-definition video.

Developed jointly by Sony and Panasonic, the format was introduced in 2006 primarily for use in high definition consumer camcorders. Favorable comparisons of AVCHD against HDV and XDCAM EX solidified perception of AVCHD as a format acceptable for professional usage. Panasonic released the first professional AVCHD camcorder in autumn of 2008, followed by Sony in the first quarter of 2010.

In 2011 the AVCHD specification has been amended to include 1080-line 50-frame/s and 60-frame/s formats and stereoscopic video. The new modes also allowed higher system data rate than existing modes.

AVCHD and its logo are trademarks of Panasonic and Sony.

Because avchd is high-deifinition, the file is very big, so we have to convert avchds with a mac avchd converter for a user of mac system